भुजा (2x+3) और (2x-3) वाले आयत को वर्गों के अंतर से पढ़ने पर क्षेत्रफल क्या है?
Reading a rectangle with sides (2x+3) and (2x-3) as a difference of squares, what is its area?
Explanation opens after your attempt
B. \(4x^2-9\)difference
Concept
It is ((2x)2-32=4x-2-9). In exams treat a rectangle with same center and opposite offset as a difference of squares.
Why this answer is correct
The correct answer is B. \(4x^2-9\) / difference. It is ((2x)2-32=4x-2-9). In exams treat a rectangle with same center and opposite offset as a difference of squares.
Exam Tip
यह ((2x)2-32=4x-2-9) है। परीक्षा में समान केंद्र और विपरीत दूरी वाले आयत को वर्गों का अंतर मानें।
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